Recent questions tagged C#

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c# - Why does XmlSerializer require types which inherit from IEnumerable to have an implementation of Add(System.Object)?

I am using xml serialization but now came across a runtime error I haven't seen before. "To be XML serializable ... ; } //IEnumerable methods } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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567 views

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c# - How do I use automapper to map a dataset with multiple tables

DISCLAIMER: this is a copy paste from an older stackoverflow post that isn't available anymore, but I have exaclty ... want to do even possible? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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543 views

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c# - Send broadcast message from all network adapters

I have an application that sends broadcast messages and listens for response packets. Below is the code snippet. m_socket ... way to do that? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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653 views

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c# - FileUpload and UpdatePanel: ScriptManager.RegisterPostBackControl works the second time

I'm developing an ASP.NET application with C# and Visual Studio 2008 SP1. I'm using WebForms. I have an ASPX page ... .Add(ud); } Thank you. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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222 views

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c# - How do I add a reference to an external configuration file to Visual Studio 2010?

I have an external configuration file, for a third party tool, which I would like to be able to edit as part of ... to edit it where it sits) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - First split then join a subset of a string

I have an input string as follows: thumb_634735515600845357tchayat_november_200612.jpg What I want to do is first split ... instance of _. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - String concatenation with or without .ToString()?

I have a statement where a string is assigned in the following manner: for (int i = 0; i < x; i++ ... use + concatenation. Thanks in advance. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - AutoStart a WCF on Azure WebRole

I have a WCF hosted on Azure (WebRole). That WCF does a lot of background tasks and replies to some ... web.config or deploy config files? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - .NET RegEx for letters and spaces

I am trying to create a regular expression in C# that allows only alphanumeric characters and spaces. Currently, I am ... What am I doing wrong? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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322 views

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c# - Why strings behave like ValueType

I was perplexed after executing this piece of code, where strings seems to behave as if they are value types ... welcoming expert views on this. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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281 views

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c# - DataTable column reorder

I'm using a DataTable with the contents column1 column2 column3 column4 column5 column6 column7 column8 column9 ... first column properly. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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370 views

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c# - How do I wait until a console application is idle?

I have a console application that starts up, hosts a bunch of services (long-running startup), and then waits for ... temp file when it's ready. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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643 views

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c# - Broken hyperlinks in RTF file in RichTextBox

I'm using a RichTextBox to display an RTF file, which includes a single hyperlink. The link text is not a URL (the ... 2.0 in C# Express 2008). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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256 views

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c# - Connect to domain SQL Server 2005 from non-domain machine

I asked a question a few days ago (Access to SQL Server 2005 from a non-domain machine using Windows ... Thanks for any help, Martin See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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499 views

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c# - Logging Generated SQL with EF Core 2 and Nlog

I'm getting a little confused with how to log the generated SQL with asp.net core 2 and EntityFrameworkCore 2 ... with regards to using NLog)? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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194 views

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c# - Use a specific timeout connected to a retrypolicy

I'm creating a retry policy the following way: var policy = Policy.Handle<Exception>().WaitAndRetryAsync... How ... for all my retry policies? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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564 views

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c# - Setting pixel color of BMP/JPG file

I'm trying to set a color of given pixel of the image. Here is the code snippet Bitmap myBitmap = new Bitmap( ... both for bmp and jpg files. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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279 views

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c# - XmlSchema inferred from an XML file - how to iterate through all the elements in the XSD?

I have an XML file and I'm inferring its XSD schema in run-time, using the XmlSchemaInference class. Sample ... up what its subelements are. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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198 views

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c# - How to validate an XML document?

My C#/.NET application reads XML files that are manually edited by the users. The allowed elements and tags are described ... to do this in C#? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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317 views

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c# - if condition with nullable

There is a lot of syntax sugar with Nullable<T> like those: int? parsed to Nullable<int> int? x = ... most obvious usage for Nullable<bool> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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217 views

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c# - Convert DateTime To JSON DateTime

I have a WebService which return DateTime Field. I get a result /Date(1379048144000)/ but i want just ... like /Date(1379048144000)/. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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510 views

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c# - How to check if date is less than or equals to today's date?

I need to determined if the date entered by the user is less than or equals to today's date. I have the following ... )); Console.ReadKey(); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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524 views

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c# - BeginInvoke throws exception

I have the following problem. FindRoot is actually in a third party dll and I do not have control over it. It ... 0, root.EndInvoke, root); } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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437 views

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c# - Combobox with checkbox in winforms

I am trying to look for a simple way to design a winform with a combobox that has checkbox values in ... controls like telerik and infragistics. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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447 views

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c# - Uploading to Amazon S3 without access & secret key

Usually when I upload to S3 storage, I use an AmazonS3Client like this: var client = Amazon.AWSClientFactory. ... access and secret key. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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561 views

1 answer

c# - How to validate X509 certificate?

I have to write a tool which validates if a X509 certificate is valid or not (input = cert path / subject and ... 't know much about certs... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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467 views

1 answer

c# - Using System.IO.Ports.SerialPort in .NET Core 1.1

I'm trying to create an console application using visual studio code with .Net Core and get all available ports. How to ... .Net Core 1.1.1 SDK See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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327 views

1 answer

c# - Conversion between Base64String and Hexadecimal

I use in my C++/CLI project ToBase64String to give a string like /MnwRx7kRZEQBxLZEkXndA== I want to convert this string ... in C++/CLI or C#? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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